20322440

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7583}}^1$

素因数の和:7661

約数の個数: 32

約数和(自身を含む): 46414080

約数和(自身を除く): 26091640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7583, 15166, 30332, 37915, 60664, 75830, 151660, 303320, 508061, 1016122, 2032244, 2540305, 4064488, 5080610, 10161220, 20322440]

約数ペア:

[(1, 20322440), (2, 10161220), (4, 5080610), (5, 4064488), (8, 2540305), (10, 2032244), (20, 1016122), (40, 508061), (67, 303320), (134, 151660), (268, 75830), (335, 60664), (536, 37915), (670, 30332), (1340, 15166), (2680, 7583)]